|
Investments (Details 8) (USD $)
In Thousands, unless otherwise specified
|
Jun. 30, 2012
|
Dec. 31, 2011
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
$ 582,017 |
$ 604,772 |
| Percentage of Total Carrying Amount |
100.00% |
100.00% |
|
Prior To 2002 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
22,216 |
28,437 |
| Percentage of Total Carrying Amount |
4.00% |
5.00% |
|
2003 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
35,236 |
42,112 |
| Percentage of Total Carrying Amount |
6.00% |
7.00% |
|
2004 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
28,473 |
29,966 |
| Percentage of Total Carrying Amount |
5.00% |
5.00% |
|
2005 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
52,462 |
54,802 |
| Percentage of Total Carrying Amount |
9.00% |
9.00% |
|
2006 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
40,594 |
42,676 |
| Percentage of Total Carrying Amount |
7.00% |
7.00% |
|
2007 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
34,600 |
35,323 |
| Percentage of Total Carrying Amount |
6.00% |
6.00% |
|
2008 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
38,504 |
44,285 |
| Percentage of Total Carrying Amount |
7.00% |
7.00% |
|
2009 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
48,268 |
50,574 |
| Percentage of Total Carrying Amount |
8.00% |
8.00% |
|
2010 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
106,816 |
133,684 |
| Percentage of Total Carrying Amount |
18.00% |
22.00% |
|
2011 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
136,784 |
142,913 |
| Percentage of Total Carrying Amount |
23.00% |
24.00% |
|
2012 [Member]
|
|
|
| Schedule of amount of mortgage loans |
|
|
| Mortgages loans Carrying Amount |
$ 38,064 |
$ 0 |
| Percentage of Total Carrying Amount |
7.00% |
0.00% |